a = 1
while a <=5:
    print('今天是第', a)
    a = a + 1


n = 1
sum = 0
while n <= 100:
    sum = sum+n
    n = n+1
    # print(sum)
print(sum)

for i in 'python':
    print(i)

for i in range(8):
    print(i)
    print()